/*
 * Copyright 1999-2012 Alibaba Group.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
/**
 * (created at 2011-5-18)
 */
package fm.liu.timo.parser.ast.stmt.dml;

import java.util.List;
import fm.liu.timo.parser.ast.expression.Expression;
import fm.liu.timo.parser.ast.expression.misc.QueryExpression;
import fm.liu.timo.parser.ast.expression.primary.Identifier;
import fm.liu.timo.parser.ast.expression.primary.RowExpression;
import fm.liu.timo.parser.util.Pair;
import fm.liu.timo.parser.visitor.Visitor;

/**
 * @author <a href="mailto:shuo.qius@alibaba-inc.com">QIU Shuo</a>
 */
public class DMLInsertStatement extends DMLInsertReplaceStatement {
    public static enum InsertMode {
        /** default */
        UNDEF, LOW, DELAY, HIGH
    }

    private final InsertMode                         mode;
    private final boolean                            ignore;
    private final List<Pair<Identifier, Expression>> duplicateUpdate;

    /**
     * (insert ... values | insert ... set) format
     * 
     * @param columnNameList can be null
     */
    @SuppressWarnings("unchecked")
    public DMLInsertStatement(InsertMode mode, boolean ignore, Identifier table,
            List<Identifier> columnNameList, List<RowExpression> rowList,
            List<Pair<Identifier, Expression>> duplicateUpdate) {
        super(table, columnNameList, rowList);
        this.mode = mode;
        this.ignore = ignore;
        this.duplicateUpdate = ensureListType(duplicateUpdate);
    }

    /**
     * insert ... select format
     * 
     * @param columnNameList can be null
     */
    @SuppressWarnings("unchecked")
    public DMLInsertStatement(InsertMode mode, boolean ignore, Identifier table,
            List<Identifier> columnNameList, QueryExpression select,
            List<Pair<Identifier, Expression>> duplicateUpdate) {
        super(table, columnNameList, select);
        this.mode = mode;
        this.ignore = ignore;
        this.duplicateUpdate = ensureListType(duplicateUpdate);
    }

    public InsertMode getMode() {
        return mode;
    }

    public boolean isIgnore() {
        return ignore;
    }

    public List<Pair<Identifier, Expression>> getDuplicateUpdate() {
        return duplicateUpdate;
    }

    @Override
    public void accept(Visitor visitor) {
        visitor.visit(this);
    }
}
